MIL-P-28501C(YD)
Surfaces normally painted in good
3.13 Cleaning, treatment, and painting.
commercial practice shall be cleaned, treated, and painted as specified herein.
Surfaces to be
The color of the finish coat shall be as specified (see 6.2).
painted shall be cleaned and dried to ensure that they are free from
contaminants such as oil, grease, welding slag and spatter, loose mill scale,
water, dirt, corrosion product, or any other contaminating substances. As soon
as practicable after cleaning, and before any corrosion product or other
contamination can result, the surfaces shall be prepared or treated to ensure
The painting shall consist of at least one
the adhesion of the coating system.
The primer shall be
coat of primer and one finish coat of acrylic-based enamel.
applied to a clean, dry surface as soon as practicable after cleaning and
Painting shall be with manufacturer's current materials according to
treating.
manufacturer's current processes and the total dry film thickness shall be not
less than 2.5 roils over the entire surface. The paint shall be free from runs,
sags , orange peel, or other defects.
3.14
Workmanship.
Bolt holes shall be accurately punched or
3.14.1 Bolted connections.
drilled and shall have the burrs removed. Washers or lockwashers shall be
provided in accordance with good commercial practice, and all bolts, nuts, and
screws shall be tight.
3.14.2 Steel fabrication.
The steel used in fabrication shall be free from
kinks, sharp bends, and other conditions which would be deleterious to the
finished product. Manufacturing processes shall not reduce the strength of the
Manufacturing processes
steel to a value less than intended by the design.
All bends shall be made by controlled
shall be done neatly and accurately.
means to ensure uniformity of size and shape.
Rivet holes shall be accurately punched or
3.14.3 Riveted connections.
drilled and shall have the burrs removed.
Rivets shall be driven with pressure
Rivet heads, when not countersunk or
tools and shall completely fill the holes.
flattened, shall be of approved shape and uniform size for the same diameter of
Rivet heads shall be full, neatly made, concentric with the rivet holes,
rivet.
and in full contact with the surface of the member.
All castings shall be sound and free from patching,
3.14.4 Casting.
misplaced coring, warping, or any other defect which reduces the casting's
ability to perform its intended function.
Welding procedures shall be in accordance with a nationally
3.14.5 Welding.
The surface of parts to be welded shall be free from
recognized welding code.
Welds shall be of
rust, scale, paint, grease, or other foreign matter.
sufficient size and shape to develop the full strength of the parts connected by
the welds. Welds shall transmit stress without permanent deformation or failure
when the parts connected by the weld are subjected to proof and service
Weld splatter and sharp edges shall be removed.
loadings.
4.
QUALITY ASSURANCE PROVISIONS
Unless otherwise specified in the
4.1 Responsibility for in spection.
contract or purchase order, the contractor is responsible for the performance of
all inspection requirements (examinations and tests) as specified herein.
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